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Old 05-07-2013, 05:48 PM   #11
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Originally Posted by Tail_gunner View Post
Great write-up!!
Me either, I've never seen a 30 or 50 amp hook up pedestal that didn't also have two 20 amp outlets also.
Newer resorts have only 50 Amp service. About 4 years ago I had to buy a dogbone 50Amp to 30 Amp to run my trailer. Since that time I've seen a number of power poles with just 50 Amp..

Bill B. (S.E. Michigan)
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Old 05-07-2013, 07:42 PM   #12
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Originally Posted by billb800si View Post
Newer resorts have only 50 Amp service.
Fortunately they make 50 amp Y connectors that split one 50 amp plug into two (sort of) 50 amp plugs.

There's lots of advice and information in forums... sometimes it is correct. For example, all of my posts are made by a political appointee who got the job as a reward for contributions to my diesel bill.

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Old 05-07-2013, 08:31 PM   #13
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Thanks. This is a nice thread with some great information and discussion.

Originally Posted by Shorty Cox View Post
...the one 15,000 BTU unit didnít quite do an adequate job. As Kitty stated, the unit we had did not have enough BTUís to cool a BUT the size of a TUB!!!

.... I then ordered a 13,500 Coleman AC unit. (No heat) I received the AC unit last Monday, April 29th.

I would like to point out that the HVAC designers felt that a 15,000 BTU unit was adequate for the size and design of the trailer. Adding a 13,500 BTU unit to the existing 15,000 BTU unit is close to doubling the capacity. That is likely overkill for any ambient temperature and humidity anyone is going to encounter in North America.

Comfort air conditioning is rarely sized for the absolute highest ambient temperature and humidity which is expected. To design for worst case conditions is neither economical or good for the environment. One of the important things that happens for comfort air conditioning is that the humidity gets removed as the air conditioning unit cools the temperature. If the temperature is reduced too quickly the humidity is not reduced and you get a clammy uncomfortable environment.

For many people it may only be necessary to add some fans to move the air around in the trailer to reduce hot spots. Fans are much cheaper to purchase and operate.

I don't know what the available standard size units are for trailer rooftops. I suggest that anyone who is considering an additional A/C unit for their trailer should consult someone familiar with sizing air condtioners before going out and buying a unit to install. In my opinion a smaller sized unit will do the job at less cost.

FWIW. vic
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Old 02-17-2014, 07:06 PM   #14
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Thumbs up

Wanted to give a tip of the cap to "Shorty Cox" for this excellent write-up.

I just completed this mod and could not be happier. I used the info in this thread to install a second AC as well an outlet in the bedroom. The outlet will be used to run a 2nd oil-radiator heater.

Just would add one more tidbit....There are two indentations in the A/C basepan that need to be drilled out when the unit is installed "nose-down". I assume this is for drainage from heavy rain or condensation overflow.

Thanks Shorty.
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Old 02-18-2014, 07:21 AM   #15
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We had Camping World install a 2nd air in our Pinnacle. When they did, it wasn't hooked up to the duct work and only blew cold air out of the grill. Camping World told us there wasn't any duct work to hook up to. I contacted Jayco, and their techs told be that the duct work is there, but it is stuffed with insulation. Camping World corrected it and we now get the bedroom a/c to cool the living room which is nice when trying to watch TV. The thing to be careful of, the bedroom a/c added 3" to our overall height.

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Old 02-18-2014, 08:34 AM   #16
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Very nice write up

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Old 02-18-2014, 10:08 AM   #17
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good day, as a a/c refrigeration mechanic myself I think you did a great job

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